Submission #583531

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
583531	2022-06-25T14:06:06 Z	urd05	Amusement Park (CEOI19_amusementpark)	C++17	63 / 100	1649 ms	3576 KB

amusementpark

#include <bits/stdc++.h>
using namespace std;

int n,m;
bool arr[18][18];
const int mod=998244353;
long long dp[262144];
int p[262144];

int main() {
    scanf("%d %d",&n,&m);
    for(int i=0;i<m;i++) {
        int u,v;
        scanf("%d %d",&u,&v);
        u--;
        v--;
        arr[u][v]=true;
    }
    memset(p,-1,sizeof(p));
    for(int i=0;i<(1<<n);i++) {
        int cnt=0;
        for(int j=0;j<n;j++) {
            if (i&(1<<j)) {
                cnt++;
            }
        }
        for(int j=0;j<n;j++) {
            for(int k=0;k<n;k++) {
                if (i&(1<<j)) {
                    if (i&(1<<k)) {
                        if (arr[j][k]||arr[k][j]) {
                            p[i]=0;
                            break;
                        }
                    }
                }
            }
        }
        if (cnt%2==1) {
            p[i]=(mod-p[i])%mod;
        }
    }
    dp[0]=1;
    for(int i=1;i<(1<<n);i++) {
        int msk=i;
        for(int j=i;j;j=((j-1)&i)) {
            dp[i]+=dp[j^i]*p[j];
            dp[i]%=mod;
        }
    }
    long long ret=dp[(1<<n)-1];
    ret*=m;
    ret%=mod;
    ret*=(mod+1)/2;
    ret%=mod;
    printf("%lld",ret);
    return 0;
}

Compilation message

amusementpark.cpp: In function 'int main()':
amusementpark.cpp:45:13: warning: unused variable 'msk' [-Wunused-variable]
   45 |         int msk=i;
      |             ^~~
amusementpark.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf("%d %d",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~
amusementpark.cpp:14:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         scanf("%d %d",&u,&v);
      |         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	1236 KB	Output is correct
2	Correct	1 ms	1236 KB	Output is correct
3	Correct	1 ms	1236 KB	Output is correct
4	Correct	2 ms	1236 KB	Output is correct
5	Correct	1 ms	1236 KB	Output is correct
6	Correct	1 ms	1236 KB	Output is correct
7	Correct	1 ms	1236 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	1236 KB	Output is correct
2	Correct	1 ms	1236 KB	Output is correct
3	Correct	1 ms	1236 KB	Output is correct
4	Correct	2 ms	1236 KB	Output is correct
5	Correct	1 ms	1236 KB	Output is correct
6	Correct	1 ms	1236 KB	Output is correct
7	Correct	1 ms	1236 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	1 ms	1236 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1236 KB	Output is correct
12	Correct	1 ms	1236 KB	Output is correct
13	Correct	2 ms	1236 KB	Output is correct
14	Correct	1 ms	1328 KB	Output is correct
15	Correct	1 ms	1332 KB	Output is correct
16	Correct	1 ms	1236 KB	Output is correct
17	Correct	1 ms	1236 KB	Output is correct
18	Correct	1 ms	1236 KB	Output is correct
19	Correct	1 ms	1236 KB	Output is correct
20	Correct	1 ms	1236 KB	Output is correct
21	Correct	1 ms	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct

Subtask #3
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	1236 KB	Output is correct
2	Correct	1 ms	1236 KB	Output is correct
3	Correct	1 ms	1236 KB	Output is correct
4	Correct	2 ms	1236 KB	Output is correct
5	Correct	1 ms	1236 KB	Output is correct
6	Correct	1 ms	1236 KB	Output is correct
7	Correct	1 ms	1236 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	1 ms	1236 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1236 KB	Output is correct
12	Correct	1 ms	1236 KB	Output is correct
13	Correct	2 ms	1236 KB	Output is correct
14	Correct	1 ms	1328 KB	Output is correct
15	Correct	1 ms	1332 KB	Output is correct
16	Correct	1 ms	1236 KB	Output is correct
17	Correct	1 ms	1236 KB	Output is correct
18	Correct	1 ms	1236 KB	Output is correct
19	Correct	1 ms	1236 KB	Output is correct
20	Correct	1 ms	1236 KB	Output is correct
21	Correct	1 ms	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct
25	Correct	1 ms	1328 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1328 KB	Output is correct
28	Correct	1 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	1 ms	1236 KB	Output is correct
31	Correct	2 ms	1236 KB	Output is correct
32	Correct	1 ms	1236 KB	Output is correct
33	Correct	1 ms	1236 KB	Output is correct
34	Correct	1 ms	1236 KB	Output is correct
35	Correct	1 ms	1328 KB	Output is correct
36	Correct	1 ms	1328 KB	Output is correct
37	Correct	1 ms	1236 KB	Output is correct
38	Correct	1 ms	1236 KB	Output is correct
39	Correct	1 ms	1336 KB	Output is correct
40	Correct	1 ms	1236 KB	Output is correct
41	Correct	1 ms	1236 KB	Output is correct
42	Correct	1 ms	1236 KB	Output is correct
43	Correct	1 ms	1236 KB	Output is correct
44	Correct	1 ms	1328 KB	Output is correct
45	Correct	1 ms	1236 KB	Output is correct
46	Correct	1 ms	1236 KB	Output is correct
47	Correct	1 ms	1236 KB	Output is correct
48	Correct	1 ms	1332 KB	Output is correct
49	Correct	1 ms	1236 KB	Output is correct
50	Correct	1 ms	1328 KB	Output is correct
51	Correct	1 ms	1332 KB	Output is correct
52	Correct	2 ms	1236 KB	Output is correct
53	Correct	1 ms	1236 KB	Output is correct
54	Correct	1 ms	1236 KB	Output is correct
55	Correct	2 ms	1236 KB	Output is correct
56	Correct	2 ms	1236 KB	Output is correct
57	Correct	1 ms	1236 KB	Output is correct
58	Correct	2 ms	1236 KB	Output is correct
59	Correct	1 ms	1236 KB	Output is correct
60	Correct	2 ms	1236 KB	Output is correct
61	Correct	1 ms	1236 KB	Output is correct
62	Correct	1 ms	1236 KB	Output is correct
63	Correct	1 ms	1236 KB	Output is correct
64	Correct	2 ms	1332 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	1236 KB	Output is correct
2	Correct	1 ms	1236 KB	Output is correct
3	Correct	1 ms	1236 KB	Output is correct
4	Correct	2 ms	1236 KB	Output is correct
5	Correct	1 ms	1236 KB	Output is correct
6	Correct	1 ms	1236 KB	Output is correct
7	Correct	1 ms	1236 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	1 ms	1236 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1236 KB	Output is correct
12	Correct	1 ms	1236 KB	Output is correct
13	Correct	2 ms	1236 KB	Output is correct
14	Correct	1 ms	1328 KB	Output is correct
15	Correct	1 ms	1332 KB	Output is correct
16	Correct	1 ms	1236 KB	Output is correct
17	Correct	1 ms	1236 KB	Output is correct
18	Correct	1 ms	1236 KB	Output is correct
19	Correct	1 ms	1236 KB	Output is correct
20	Correct	1 ms	1236 KB	Output is correct
21	Correct	1 ms	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct
25	Correct	1 ms	1328 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1328 KB	Output is correct
28	Correct	1 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	1 ms	1236 KB	Output is correct
31	Correct	2 ms	1236 KB	Output is correct
32	Correct	1 ms	1236 KB	Output is correct
33	Correct	1 ms	1236 KB	Output is correct
34	Correct	1 ms	1236 KB	Output is correct
35	Correct	1 ms	1328 KB	Output is correct
36	Correct	1 ms	1328 KB	Output is correct
37	Correct	1 ms	1236 KB	Output is correct
38	Correct	1 ms	1236 KB	Output is correct
39	Correct	1 ms	1336 KB	Output is correct
40	Correct	1 ms	1236 KB	Output is correct
41	Correct	1 ms	1236 KB	Output is correct
42	Correct	1 ms	1236 KB	Output is correct
43	Correct	1 ms	1236 KB	Output is correct
44	Correct	1 ms	1328 KB	Output is correct
45	Correct	1 ms	1236 KB	Output is correct
46	Correct	1 ms	1236 KB	Output is correct
47	Correct	1 ms	1236 KB	Output is correct
48	Correct	1 ms	1332 KB	Output is correct
49	Correct	1 ms	1236 KB	Output is correct
50	Correct	1 ms	1328 KB	Output is correct
51	Correct	1 ms	1332 KB	Output is correct
52	Correct	2 ms	1236 KB	Output is correct
53	Correct	1 ms	1236 KB	Output is correct
54	Correct	1 ms	1236 KB	Output is correct
55	Correct	2 ms	1236 KB	Output is correct
56	Correct	2 ms	1236 KB	Output is correct
57	Correct	1 ms	1236 KB	Output is correct
58	Correct	2 ms	1236 KB	Output is correct
59	Correct	1 ms	1236 KB	Output is correct
60	Correct	2 ms	1236 KB	Output is correct
61	Correct	1 ms	1236 KB	Output is correct
62	Correct	1 ms	1236 KB	Output is correct
63	Correct	1 ms	1236 KB	Output is correct
64	Correct	2 ms	1332 KB	Output is correct
65	Correct	24 ms	1364 KB	Output is correct
66	Correct	25 ms	1492 KB	Output is correct
67	Correct	24 ms	1364 KB	Output is correct
68	Correct	25 ms	1420 KB	Output is correct
69	Correct	23 ms	1376 KB	Output is correct
70	Correct	23 ms	1428 KB	Output is correct
71	Correct	24 ms	1452 KB	Output is correct
72	Correct	25 ms	1364 KB	Output is correct
73	Correct	22 ms	1448 KB	Output is correct
74	Correct	22 ms	1456 KB	Output is correct
75	Correct	23 ms	1364 KB	Output is correct
76	Correct	25 ms	1372 KB	Output is correct
77	Correct	67 ms	1616 KB	Output is correct
78	Correct	67 ms	1564 KB	Output is correct
79	Correct	65 ms	1664 KB	Output is correct
80	Correct	64 ms	1488 KB	Output is correct
81	Correct	66 ms	1484 KB	Output is correct
82	Correct	67 ms	1540 KB	Output is correct
83	Correct	65 ms	1504 KB	Output is correct
84	Correct	65 ms	1572 KB	Output is correct
85	Correct	68 ms	1540 KB	Output is correct
86	Correct	69 ms	1572 KB	Output is correct
87	Correct	67 ms	1500 KB	Output is correct
88	Correct	68 ms	1472 KB	Output is correct
89	Correct	63 ms	1460 KB	Output is correct
90	Correct	64 ms	1528 KB	Output is correct
91	Correct	67 ms	1504 KB	Output is correct
92	Correct	68 ms	1476 KB	Output is correct

Subtask #5
0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	1236 KB	Output is correct
2	Correct	1 ms	1236 KB	Output is correct
3	Correct	1 ms	1236 KB	Output is correct
4	Correct	2 ms	1236 KB	Output is correct
5	Correct	1 ms	1236 KB	Output is correct
6	Correct	1 ms	1236 KB	Output is correct
7	Correct	1 ms	1236 KB	Output is correct
8	Correct	1 ms	1236 KB	Output is correct
9	Correct	1 ms	1236 KB	Output is correct
10	Correct	1 ms	1236 KB	Output is correct
11	Correct	1 ms	1236 KB	Output is correct
12	Correct	1 ms	1236 KB	Output is correct
13	Correct	2 ms	1236 KB	Output is correct
14	Correct	1 ms	1328 KB	Output is correct
15	Correct	1 ms	1332 KB	Output is correct
16	Correct	1 ms	1236 KB	Output is correct
17	Correct	1 ms	1236 KB	Output is correct
18	Correct	1 ms	1236 KB	Output is correct
19	Correct	1 ms	1236 KB	Output is correct
20	Correct	1 ms	1236 KB	Output is correct
21	Correct	1 ms	1236 KB	Output is correct
22	Correct	1 ms	1236 KB	Output is correct
23	Correct	1 ms	1236 KB	Output is correct
24	Correct	1 ms	1236 KB	Output is correct
25	Correct	1 ms	1328 KB	Output is correct
26	Correct	1 ms	1236 KB	Output is correct
27	Correct	1 ms	1328 KB	Output is correct
28	Correct	1 ms	1236 KB	Output is correct
29	Correct	1 ms	1236 KB	Output is correct
30	Correct	1 ms	1236 KB	Output is correct
31	Correct	2 ms	1236 KB	Output is correct
32	Correct	1 ms	1236 KB	Output is correct
33	Correct	1 ms	1236 KB	Output is correct
34	Correct	1 ms	1236 KB	Output is correct
35	Correct	1 ms	1328 KB	Output is correct
36	Correct	1 ms	1328 KB	Output is correct
37	Correct	1 ms	1236 KB	Output is correct
38	Correct	1 ms	1236 KB	Output is correct
39	Correct	1 ms	1336 KB	Output is correct
40	Correct	1 ms	1236 KB	Output is correct
41	Correct	1 ms	1236 KB	Output is correct
42	Correct	1 ms	1236 KB	Output is correct
43	Correct	1 ms	1236 KB	Output is correct
44	Correct	1 ms	1328 KB	Output is correct
45	Correct	1 ms	1236 KB	Output is correct
46	Correct	1 ms	1236 KB	Output is correct
47	Correct	1 ms	1236 KB	Output is correct
48	Correct	1 ms	1332 KB	Output is correct
49	Correct	1 ms	1236 KB	Output is correct
50	Correct	1 ms	1328 KB	Output is correct
51	Correct	1 ms	1332 KB	Output is correct
52	Correct	2 ms	1236 KB	Output is correct
53	Correct	1 ms	1236 KB	Output is correct
54	Correct	1 ms	1236 KB	Output is correct
55	Correct	2 ms	1236 KB	Output is correct
56	Correct	2 ms	1236 KB	Output is correct
57	Correct	1 ms	1236 KB	Output is correct
58	Correct	2 ms	1236 KB	Output is correct
59	Correct	1 ms	1236 KB	Output is correct
60	Correct	2 ms	1236 KB	Output is correct
61	Correct	1 ms	1236 KB	Output is correct
62	Correct	1 ms	1236 KB	Output is correct
63	Correct	1 ms	1236 KB	Output is correct
64	Correct	2 ms	1332 KB	Output is correct
65	Correct	24 ms	1364 KB	Output is correct
66	Correct	25 ms	1492 KB	Output is correct
67	Correct	24 ms	1364 KB	Output is correct
68	Correct	25 ms	1420 KB	Output is correct
69	Correct	23 ms	1376 KB	Output is correct
70	Correct	23 ms	1428 KB	Output is correct
71	Correct	24 ms	1452 KB	Output is correct
72	Correct	25 ms	1364 KB	Output is correct
73	Correct	22 ms	1448 KB	Output is correct
74	Correct	22 ms	1456 KB	Output is correct
75	Correct	23 ms	1364 KB	Output is correct
76	Correct	25 ms	1372 KB	Output is correct
77	Correct	67 ms	1616 KB	Output is correct
78	Correct	67 ms	1564 KB	Output is correct
79	Correct	65 ms	1664 KB	Output is correct
80	Correct	64 ms	1488 KB	Output is correct
81	Correct	66 ms	1484 KB	Output is correct
82	Correct	67 ms	1540 KB	Output is correct
83	Correct	65 ms	1504 KB	Output is correct
84	Correct	65 ms	1572 KB	Output is correct
85	Correct	68 ms	1540 KB	Output is correct
86	Correct	69 ms	1572 KB	Output is correct
87	Correct	67 ms	1500 KB	Output is correct
88	Correct	68 ms	1472 KB	Output is correct
89	Correct	63 ms	1460 KB	Output is correct
90	Correct	64 ms	1528 KB	Output is correct
91	Correct	67 ms	1504 KB	Output is correct
92	Correct	68 ms	1476 KB	Output is correct
93	Correct	1589 ms	3304 KB	Output is correct
94	Correct	1602 ms	3452 KB	Output is correct
95	Correct	1592 ms	3348 KB	Output is correct
96	Correct	1581 ms	3500 KB	Output is correct
97	Correct	1565 ms	3432 KB	Output is correct
98	Correct	1548 ms	3576 KB	Output is correct
99	Correct	206 ms	1836 KB	Output is correct
100	Correct	193 ms	1808 KB	Output is correct
101	Correct	183 ms	1924 KB	Output is correct
102	Correct	191 ms	1716 KB	Output is correct
103	Correct	551 ms	2264 KB	Output is correct
104	Correct	559 ms	2336 KB	Output is correct
105	Correct	558 ms	2272 KB	Output is correct
106	Correct	546 ms	2328 KB	Output is correct
107	Correct	1615 ms	3340 KB	Output is correct
108	Correct	1624 ms	3492 KB	Output is correct
109	Correct	1649 ms	3480 KB	Output is correct
110	Correct	1578 ms	3520 KB	Output is correct
111	Correct	185 ms	1736 KB	Output is correct
112	Correct	179 ms	1812 KB	Output is correct
113	Correct	187 ms	1828 KB	Output is correct
114	Correct	190 ms	1788 KB	Output is correct
115	Correct	181 ms	1740 KB	Output is correct
116	Correct	183 ms	1780 KB	Output is correct
117	Correct	198 ms	1760 KB	Output is correct
118	Correct	181 ms	1860 KB	Output is correct
119	Correct	181 ms	1788 KB	Output is correct
120	Correct	187 ms	1824 KB	Output is correct
121	Correct	194 ms	1932 KB	Output is correct
122	Correct	552 ms	2272 KB	Output is correct
123	Correct	537 ms	2340 KB	Output is correct
124	Correct	532 ms	2348 KB	Output is correct
125	Correct	525 ms	2220 KB	Output is correct
126	Correct	539 ms	2324 KB	Output is correct
127	Correct	525 ms	2336 KB	Output is correct
128	Correct	515 ms	2272 KB	Output is correct
129	Correct	531 ms	2272 KB	Output is correct
130	Correct	541 ms	2272 KB	Output is correct
131	Correct	524 ms	2360 KB	Output is correct
132	Correct	535 ms	2396 KB	Output is correct
133	Correct	538 ms	2288 KB	Output is correct
134	Correct	566 ms	2220 KB	Output is correct
135	Correct	525 ms	2508 KB	Output is correct
136	Correct	530 ms	2476 KB	Output is correct
137	Correct	529 ms	2252 KB	Output is correct
138	Correct	556 ms	2224 KB	Output is correct
139	Correct	526 ms	2224 KB	Output is correct
140	Incorrect	529 ms	2328 KB	Output isn't correct
141	Halted	0 ms	0 KB	-

Submission #583531

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 12.0 / 12.0

Subtask #3 23.0 / 23.0

Subtask #4 21.0 / 21.0

Subtask #5 0 / 37.0

Subtask #1
7.0 / 7.0

Subtask #2
12.0 / 12.0

Subtask #3
23.0 / 23.0

Subtask #4
21.0 / 21.0

Subtask #5
0 / 37.0